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For those who have broken their ETC set screw

1616 Views 4 Replies 4 Participants Last post by  Krieg
Hey guys, so i had a little hiccup on my 08 gt cs, I replaced the TPS and noticed that it was a little low, so i tried to adjust the 10mm plastic spring loaded screw that opens the blades slightly to get my tps to 1.25v because i was getting a etc code and forced idle, annnnddd, it broke. the only thing i was able to save was the spring. and i couldn't seem to find anyone anywhere without buying a whole new throttle body. So i set out to make something that could work for it since i saw no point in buying a new tb for a 4.6 when someday I'm going get the larger frpp tb. I learned that the bolt is 10mm x 1.25 and is about 1.5" long. I went to ace hardware and picked up a 10mm steel bolt that would fit right in. I got a 1/4" set screw, 1/4" tap and drill bit for the tap. I lost the plunger so i was SOL on that, so i took my cutting wheel attachment for my dremel lol and cut the larger section down to 1/4", Drilled the smallest hole on a drill press, than drilled the larger hole to fit the spring,m but left it smaller dis for 1/4" at the bottom of the bolt to be a plunger stop, and done. works perfectly and no more code, tps set at 1.25v and its fully adjustable for future TBs. Kind of ghetto but it works, and to me better than stock. topped it off with some blue loctite Hope this helps anyone else who has broken their set screw. sorry for not having pics of the process. Not bad for making a decent fix when your daily driver craps out

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Necessity is the mother of invention!!...Nice save! coolbeans.gif
Necessity is the mother of invention!!...Nice save! coolbeans.gif
Yeah i was surprised at how well it works, it has the same spring tension as the plastic one and though being all metal, it doesn't bind at all. Im going to make more using allen head bolts, better materials, and cut them shorter to look better.
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Sometimes you have to spray a little penetrating oil on those plastic bolts after they've baked for a lot of miles. Some of them are meant to be easily replaced. Others aren't really meant to be touched.
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